Cartier Tank Solo Extra Large Model Watch. 31 x 40.8 mm by 7.6 mm thick 18K pink gold and stainless steel case, 18K pink gold beaded crown set with a synthetic spinel cabochon, sapphire crystal, silver dial with 12 Roman numerals and blued steel hands, caliber Cartier 049 automatic movement, matt brown alligator strap with 18K p